Hatch-fastener.



A. HYND. HATCH FASTENER.

APPLIOATION FILED NOV. 11 190B.

Patented Nov. 15, 1910.

2 SHEETSSHBET 1.

THE NORRIS PETERS cu, WASHINGTON. n c.

A. HYND.

HATCH FASTENER.

APPLIOATION FILED NOV. 11, 1908. 975,528. Patented Nov. 15, 1910.

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6 w 2 k m V A a W 6 I! d 35 le 3 r5 Q ALEXANDER HYND, OF CLEVELAND,OHIO.

HAT CI-I-FASIENER.

Specification of Letters Patent.

Patented Nov. 15, 1910.

Application filed November 11, 1908. Serial No. 462,113.

To all whom it may concern:

Be it known that I, ALEXANDER HYND, a citizen of the United States ofAmerica, residing at Cleveland, in the county of Cuyahoga and State ofOhio, have invented certain new and useful Improvements inHatch-Fasteners; and I hereby declare the following to be a full, clear,and exact description of the invention, such as will enable otherssldlled in the art to which it pertains to make and use the same.

This invention relates to device for holding down hatch covers ofvessels and for clamping to the hatch coamings the waterproof covers ortarpaulins so as to prevent water from entering a hatch between thecoaming and the edges of the tarpaulin. Clamping devices have beenemployed heretofore for this purpose, but, as far as I am aware, nonehave proven entirely satisfactory, chiefly for the reason that, onaccount of differences in the thickness of the batten or wooden stripsemployed for clamping the edges of the tarpaulin against the coaming,the clamps do not hold both the hatch cover and the tarpaulin in place,but either clamp down the hatch cover without holding the edges of thetarpaulin firmly against the coaming, or hold the tarpaulin in placewithout clamping down the hatch cover.

The object of the present invention is to provide a clamping devicewhich will hold the hatch cover firmly in place and securely clamp thetarpaulin against the coaming regardless of any differences in thicknessof the hatch cover or batten. I

In carrying out my invention I employ two clamping members, one for thehatch cover and the other for the tarpaulin, which members cooperate ina manner such that, when tightened preferably by a single tightening nutthey have independent clamping action against the parts which theyengage so that if one member engages first it does not prevent thetightening of the other clamping member.

More specifically considered, the clamping device comprises two clampingmembers and a bracket secured to the side of the coaming, the one, ofsaid members, which clamps the tarpaulin to the coaming loosely engagesthe bracket and has a threaded shank which passes freely through theother member which is arranged to engage the hatch cover. The bracket isprovided with an upwardly projecting portion which serves as a fulcrumfor one of the members and has an inclined face which cooperates withthe other member, so as to force the same laterally into clampingposition, the parts being so arranged that when a nut on the threadedshank of one member is tightened against the other member, the latter isforced downward onto the hatch cover and the first member is drawnupward into engagement with the inclined face of the bracket and is thusshifted inwardly or laterally so as to tightly engage the batten.

My invention may be further briefly sum marized as consisting in certainnovel details of construct-ion and combinations and arrangements ofparts which will be described in the specification, pointed out in theclaims and illustrated in the accompanying drawings.

In the accompanying drawings Figure 1 is a view showing in section aportion of I deck, coaming, hatch cover and tarpaulin and showing inside elevation the parts of the clamping device. Fig. 2 is a front viewof the same. Fig. 3 is a top plan View. Fig. I is a section on line4-4:, Fig. 2. Fig. 5 is a front elevation of the clamping device,showing it unclamped and lying down beside the coaming.

Referring to the drawings, 10 represents a portion of the deck, 11 theside of the coaming, 12 the hatch cover consisting in this case of anumber of overlapping plates, 13 the tarpaulin which is spread over thehatch cover and extends along the sides of the coaming, and 14 a woodenstrip or batten which is usually employed for clamping the edges of thetarpaulin to the coaming. In the angle formed by the coaming and deck isan angle iron 15, and extending around the coaming a short distance fromthe top is an angle iron 16 having a flange which extends outward as faras, or beyond, the outermost plates forming the hatch cover, and whichis adapted to be engaged by the downwardly extending tarpaulin, so thatthe latter will extend downward to the batten evenly and uniformly.

Secured to the coaming a short distance above the angle iron 15 is abracket 17 forming part of the clamping device, the bracket beingsecured to the coaming by short bolts 18 passing through the coamingwall and through perforated cars 19 on the bracket. The latter areprovided with an outwardly extending shank 20 which is preferablycylindrical in shape and at the outer end of the shank with an upwardlyextending portion 21 provided on the side toward the coaming with aninclined or cam face 22 adapted to cooperate with and form an abutmentfor one of the clamping members, and at the top with a pair of notchedears 23 which serve as a fulcrum for the other clampingmember as will beexplained.

At 25 and 26 are shown two clamping members, the former of which servesto clamp the tarpaulin to the co'amingand the latter serves to hold downthe hatch cover. The member 25 is provided with a shank 27 which isthreaded at its upper end and passes freely through the member 26 and atthe lower portion on one side with a clamping surface 28 adapted toengage the batten 14 and on the opposite side with a nose 29 adapted toengage the inclined face 22 of the bracket. The member 25 is alsoprovided at the bottom with a pair of spaced arms 30 which extendloosely around the shank of the bracket, the ends of the arms extendinginward toward each other as shown at 31 so that the clamping membercannot slip 01f the shank when not in use. The shank of the bracket 17is provided on opposite sides witha pair of parallel grooves 24 whichpermit the arms 30 of the clamp member 25 to be slipped on or off atthis P' i J J The clamping member 26 is substantially L-shapejd having aportion 33 which is adapted to clamp 'down upon the top of the hatchcover, this portion being faced with leather or other yieldable material'34 to prevent abrasion of the tarpaulin, and with a downwardlyextending portion 35 which when in clamping position rests upon thenotched ears 23 of the bracket, the lower end of the member 26 whichengages the ears being rounded so as to conform somewhat to the shape ofthe bottom of the notches of the ears so as to permit a freedom ofmovement,

. clamping member 25 extends, the diameter of the opening being somewhatlarger than the diameter of the shank. The end of the shank 27 isengaged by a nut 38 having hand-grips or project ons 39 and a boss 40adapted to engage the boss '37 on the member 2'6, the lower part of theboss LO'being slightl' rounded as shown, to permit relative jla eralmovement between the same and the boss 37. g k I When it' is desired toclamp the hatch cover and tarpau'lin in place the lower end of themember 26 is placed within the ilotched cars 23 of the bracket and thenut 38 is tightened. By turning the nut, 38 the shank 27 is drawn upwardcausing the pro j ection or nose 29 to enga e the inclined face 22 ofthe bracket 17 causing the member 25 to be shifted inward. At the sametime the portion 33 of the clamping member 26 is forced downward ontothe hatch cover. It will be seen that with this construction the twoclamping members have clamping actions entirely independent of eachother and the seating or clamping of one does not prevent the other frombeing tightened and both will be drawn firmly against the mem bers whichthey are to engage regardless of the thickness or proportions of thehatch cover and batten.

While I have shown only a single clamping device it will be understoodthat as many of these clamping devices may be employed along each sideof the hatch as is necessary or desired. When the hatch covers are made.of overlapping sections as in the case illustrated I prefer to employaclamp at each overlapping joint.

When it is desired to remove the hatch cover all that is necessary is toloosen the nut 38 an amount sufficient to permit the lower end of theclamping member 26 to be lifted out of the notches of the ears 23 of thebracket. When this is done the two clamping members can be turned downalong the side of the-coaming where they will be out of the way. At thesame time however the members will not become separated from the shankof the bracket and be lost or misplaced.

I. do not desire to be confined to the exact details shown, but aim inmy claims to cover all modifications which do not involve a departurefrom the spirit and scope of my invention. 7

What I claim i's,

1. In a hatch cover and tarpaulin clamping device, a bracket, a pair ofindependently movable clamping members, said bracket having a fulcrumsupport for one of said members and an inclined face or abutment for theother, and means on one of said clamping members and engaging the otherfor forcing one of the same downward onto the hatch cover and the otherin engagement with said inclined face and hence laterally toward thecoami'ng.

2. In a device for clamping in position a hatch cover and tarpaulin, abracket secured to the coai'ning, said bracket having a projecti'onprovided with an inclined face and a notched portion forming a seat, apair of independently movable clamping members, one of said membersbeing substantially L- shaped and adapted to engage the hatch cover andsaid seat, the other memb'enhaving "a threaded shank passing through anopening in the first member and having a nose or projection adapted toengage said inclined face on the bracket; and a nut on 1 In testimonywhereof, I sign the foregoing said shank serving to force said firstmember specification, in the presence of two Witdown upon the hatchcover and the second nesses. member upward into engagement With theALEXANDER HYND. inclined face and hence laterally so as to Witnesses:

clamp the edge of the tarpaulin to the coam- VICTOR C. LYNCH, mg.

N. L. MODONNELL.

